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Olfactory network dynamics and the coding of multidimensional signals

Laurent, Gilles (2002) Olfactory network dynamics and the coding of multidimensional signals. Nature Reviews Neuroscience, 3 (11). pp. 884-895. ISSN 1471-003X. doi:10.1038/nrn964.

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The brain faces many complex problems when dealing with odorant signals. Odours are multidimensional objects, which we usually experience as unitary percepts. They are also noisy and variable, but we can classify and identify them well. This means that the olfactory system must solve complicated pattern-learning and pattern-recognition problems. I propose that part of the solution relies on a particular architecture that imposes a dynamic format on odour codes. According to this hypothesis, the olfactory system actively creates a large coding space in which to place odour representations and simultaneously optimizes their distribution within it. This process uses both oscillatory and non-periodic dynamic processes with complementary functions: slow non-periodic processes underlie decorrelation, whereas fast oscillations allow sparsening and feature binding.

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Laurent, Gilles0000-0002-2296-114X
Additional Information:© 2002 Nature Publishing Group. The work from my laboratory reviewed here was funded by the National Science Foundation, the National Institute on Deafness and other Communication Disorders, and the McKnight, Keck, Sloan and Sloan-Swartz Foundations. I thank M. Stopfer, R. Friedrich, K. McLeod, M. Wehr, J. Perez-Orive, O. Mazor, S. Cassenaer, R. Wilson, G. Turner, C. Pouzat, V. Jayaraman, S. Farivar, H. Davidowitz, R. Jortner, A. Holub, M. Rabinovich, H. Abarbanel, R. Huerta, T. Nowotny, V. Zighulin, A. Bäcker, M. Bazhenov, P. Perona and E. Schuman for the privilege of working on these problems with them. I thank P. Cariani for pointing me to Kanerva’s book on sparse distributed memories, K. Heyman for secretarial assistance and S. Farivar for Golgis in figure 4.
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National Institute on Deafness and Other Communication DisordersUNSPECIFIED
McKnight FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Sloan-Swartz FoundationUNSPECIFIED
Issue or Number:11
Record Number:CaltechAUTHORS:20150408-140531693
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Official Citation:Olfactory network dynamics and the coding of multidimensional signals Gilles Laurent p884 | doi:10.1038/nrn964
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56493
Deposited By: Ruth Sustaita
Deposited On:08 Apr 2015 22:25
Last Modified:10 Nov 2021 21:00

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